What's the difference between the 5.7 vortec in a c1500 and a c 3500

1 Answer

The blocks will be the same, the only thing I can think of is the
truck engine could have a different cam for higher torque at a
lower RPM, then of course the electronics will be different, you may
have to transfer components.

I have a 1991 Chevy C3500 crew cab single wheel truck. I Want To Convert
this truck to 4wd. i have a 1985 k3500 as a donor truck it is a dully both have
350's motors .trans r autos, t case should b ...

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